Guys, trying every where to get some pics/advice?

I need to replace the rear brake pipes both sides from the flexible hoses. The tank needs to come out. Has anyone got a how to or can give a description of what needs undone in any certain order please. I cant re-route the pipes as its in N.Ireland and the dedicated test centres will fail it. Its a 2L, year 01 diesel.

The bits i'm not sure about at the minute is how the connection is made from the fuel pipe to the actual tank at the tank, the connection sort of feels spring loaded but does it pull off or is it unscrewed? Do I have to remove pipes at the fuel pump as well?